Having nonzero allowance to the exchange will prevent any future trades

Lines of code Vulnerability details Impact A borrower can prevent other lenders to call claimAndRepay, in other words the lenders can not use the revenue streams in the spigotedLine. Proof of Concept Suppose a borrower has a stream of revenue token, and also borrowed some tokens already. Then the...

SpigotedLineLib::trade won’t work with tokens with approval race protection (USDT)

Lines of code Vulnerability details Proof of Concept Some tokens e.g. USDT, KNC do not allow approving an amount M 0 when an existing amount N 0 is already approved. This is to protect from an ERC20 attack vector described here. The problem is the code in trade is the following...